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Vulnerability · Published Jul 12, 2024 · Assigned by Linux

CVE-2024-40956dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 81.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list Use list_for_each_entry_safe() to allow iterating through the list and deleting the entry in the iteration process. The descriptor is freed via idxd_desc_complete() and there's a slight chance may cause issue for the list iterator when the descriptor is reused by another thread without it being deleted from the list.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.99-1DEBIAN-CVE-2024-40956
Debian:13linux6.9.7-1DEBIAN-CVE-2024-40956
Debian:14linux6.9.7-1DEBIAN-CVE-2024-40956
Ubuntu:22.04:LTSlinux5.15.0-121.131UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux6.8.0-44.44UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-aws5.15.0-1069.75UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-aws6.8.0-1015.16UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1015.16~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure5.15.0-1072.81UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-azure6.8.0-1014.16UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1072.81.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gcp5.15.0-1068.76UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-gcp6.8.0-1014.16UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gke5.15.0-1066.72UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-gke6.8.0-1010.13UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1052.59UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-45.45~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-ibm5.15.0-1062.65UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-ibm6.8.0-1012.12UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1064.70UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-kvm5.15.0-1066.71UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-121.131UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-44.44.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1064.65UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1013.14UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1013.14.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1028.28UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1016.16UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1012.12UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oracle5.15.0-1067.73UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-oracle6.8.0-1012.12UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-raspi5.15.0-1062.65UBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-raspi6.8.0-1011.12UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-40956
Ubuntu:24.04:LTSlinux-riscv6.8.0-44.44.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-40956
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-40956

Affected products (as reported)

VendorProductVersions
Linux Linux 16e19e11228ba660d9e322035635e7dcf160d5c2 – before 1b08bf5a17c66ab7dbb628df5344da53c8e7ab3316e19e11228ba660d9e322035635e7dcf160d5c2 – before 83163667d881100a485b6c2daa30301b7f68d9b516e19e11228ba660d9e322035635e7dcf160d5c2 – before faa35db78b058a2ab6e074ee283f69fa398c36a816e19e11228ba660d9e322035635e7dcf160d5c2 – before a14968921486793f2a956086895c3793761309dd16e19e11228ba660d9e322035635e7dcf160d5c2 – before e3215deca4520773cd2b155bed164c12365149a7
Linux Linux 5.11

References